Enclosure not stated · 3 knobs
ABACUS- 8 Step Analog Sequencer
Based on the Electro-Harmonix Sequencer Drum
- Category
- Utility
- Price
- $18.99in stock
From the vendor
Welcome to the Lectric-FX ABACUS, our first foray outside the world of pedals.
A faithful recreation of the vintage Electro Harmonix Sequencer Drum (no relation to the 8 step program), converted to use an LM13700 in place of the original’s 2 x rare CA3094, and with an on-board charge pump to provide the required 15V supply. An 8-step sequencer capable of creating exciting rhythms, bleeps, bloops, controlling external devices and…
Build doc posted below
Schematic
The schematic is in the vendor's build document, page 5. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 116 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
ocr read from an image · sch paired from the schematic · fixed corrected by hand. Check marked values against the build document.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 42 | ||||
| R1 | 2sch | 2 | ||
| R2 | 2sch | 2 | ||
| R3 | 1sch | 1 | ||
| R4 | 1sch | 1 | ||
| R5 | 1sch | 1 | ||
| R6 | 1sch | 1 | ||
| R7 | 1sch | 1 | ||
| R8 | 2sch | 2 | ||
| R9 | 1sch | 1 | ||
| R10 | 2sch | 2 | ||
| R11 | 10ksch | 10k | ||
| R12 | 1sch | 1 | ||
| R13 | 2sch | 2 | ||
| R14 | 2sch | 2 | ||
| R15 | 1sch | 1 | ||
| R16 | 1sch | 1 | ||
| R17 | 2sch | 2 | ||
| R18 | 1sch | 1 | ||
| R19 | 2sch | 2 | ||
| R20 | 2sch | 2 | ||
| R21 | 2sch | 2 | ||
| R22 | 2sch | 2 | ||
| R23 | 1sch | 1 | ||
| R24 | 2sch | 2 | ||
| R25 | 2sch | 2 | ||
| R26 | 2sch | 2 | ||
| R27 | 2sch | 2 | ||
| R28 | 1sch | 1 | ||
| R29 | 2sch | 2 | ||
| R30 | 1sch | 1 | ||
| R31 | 1sch | 1 | ||
| R32 | 2sch | 2 | ||
| R33 | 2sch | 2 | ||
| R34 | 2sch | 2 | ||
| R35 | 1sch | 1 | ||
| R36 | 2sch | 2 | ||
| R37 | 2sch | 2 | ||
| R38 | 1sch | 1 | ||
| R39 | 1sch | 1 | ||
| R40 | 1sch | 1 | ||
| R52 | 20kocr | 20k | ||
| R54 | 470Kocr | 470k | ||
| Capacitors 17 | ||||
| C1 | 10nsch | 10n | ||
| C2 | 47nsch | 47n | ||
| C3 | 2u2sch | 2.2u | ||
| C4 | 1usch | 1u | ||
| C5 | 10nsch | 10n | ||
| C6 | 100nsch | 100n | ||
| C7 | 470nsch | 470n | ||
| C8 | 10nsch | 10n | ||
| C9 | 22nsch | 22n | ||
| C10 | 47nsch | 47n | ||
| C11 | 100usch | 100u | ||
| C12 | 220usch | 220u | ||
| C13 | 220usch | 220u | ||
| C14 | 220usch | 220u | ||
| C15 | 100nsch | 100n | ||
| C16 | 100nsch | 100n | ||
| C17 | 22nsch | 22n | ||
| Diodes 24 | ||||
| D19 | 1n5817sch | 1N5817 | ||
| D20 | 1n5817sch | 1N5817 | ||
| D21 | 1n5817sch | 1N5817 | ||
| D22 | 1n4002sch | 1N4002 | ||
| D1 | 1N4148ocr | 1N4148 | ||
| D2 | 1N4148ocr | 1N4148 | ||
| D3 | 1N4148ocr | 1N4148 | ||
| D4 | 1N4148ocr | 1N4148 | ||
| D5 | 1N4148ocr | 1N4148 | ||
| D7 | 1N4148ocr | 1N4148 | ||
| D8 | 1N4148ocr | 1N4148 | ||
| D9 | 1N4148ocr | 1N4148 | ||
| D10 | 1N4148ocr | 1N4148 | ||
| D11 | 1N4148ocr | 1N4148 | ||
| D12 | 1N4148ocr | 1N4148 | ||
| D13 | 1N4148ocr | 1N4148 | ||
| D14 | 1N4148ocr | 1N4148 | ||
| D15 | 1N4148ocr | 1N4148 | ||
| D16 | 1N4148ocr | 1N4148 | ||
| D17 | 1N4148ocr | 1N4148 | ||
| D18 | 1N4148ocr | 1N4148 | ||
| D116 | 1N4148ocr | 1N4148 | ||
| D199 | 1N5817fixed | 1N5817 | ||
| D6 | 1N4148ocr | 1N4148 | ||
| Transistors 18 | ||||
| Q1 | 2N5088ocr | 2N5088 | ||
| Q2 | 2N5087ocr | 2N5087 | ||
| Q3 | 2N5088ocr | 2N5088 | ||
| Q4 | 2N5088ocr | 2N5088 | ||
| Q5 | 2N5087ocr | 2N5087 | ||
| Q6 | 2N5087ocr | 2N5087 | ||
| Q7 | 2N5087ocr | 2N5087 | ||
| Q8 | 2N5087ocr | 2N5087 | ||
| Q9 | 2N5088ocr | 2N5088 | ||
| Q10 | 2N5088ocr | 2N5088 | ||
| Q11 | 2N5088ocr | 2N5088 | ||
| Q12 | 2N5088ocr | 2N5088 | ||
| Q13 | 2N5088ocr | 2N5088 | ||
| Q14 | 2N5088ocr | 2N5088 | ||
| Q15 | 2N5088ocr | 2N5088 | ||
| Q16 | 2N5088ocr | 2N5088 | ||
| Q17 | 2N5088ocr | 2N5088 | ||
| Q18 | 2N5088ocr | 2N5088 | ||
| ICs 6 | ||||
| IC11 | LT1054sch | LT1054 | ||
| IC1 | LM1458ocr | LM1458 | ||
| IC4 | LM13700ocr | LM13700 | ||
| IC12 | 78L15ocr | 78L15 | ||
| IC2 | CD4013BEocr | CD4013BE | ||
| IC3 | CD4015BEocr | CD4015BE | ||
| Potentiometers 3 | ||||
| Decay | 100KBsch | B100k | Potentiometer | |
| Rate | 1MCsch | C1M | Potentiometer | |
| Res | C1Ksch | C1k | Potentiometer | |
| Switches 6 | ||||
| MIC | SPDTocr | SPDT | ||
| SINGLE | SPDTocr | SPDT | ||
| FOOTSWITCH | SPSTocr | SPST | ||
| FOOTSWITEN | SPSTocr | SPST | ||
| MOMENTARY | SPSTocr | SPST | ||
| FOSTEWITCH | SPSTocr | SPST | ||